Device for maintaining the bend of the tips of ski



L. BURCH 2,191,641

DEVICE FOR MAINTAINING THE BEND OF THE TIPS OF SKI Fgb. 27, 1940.

Filed Dec. 13, 1938 KB uIO/l o m/enfor' Patented Feb. 27, 1940' UNITEDstares DEVICE FOR MAINTAINING THE BEND OF THE TIPS F SKI Leo Burch,Zurich, Switzerland I Application December 13, 1938, Serial No. 245,511In Switzerland December 15, 1937 6 Claims, (01. 280-4137) f Thisinvention-relates to devices for preventing the up-turned ends or tipsof ski from warping when not in use and is of the kind adapted to befixed between a pair of ski and to hold the ups turned ends or tips in astretched or tensioned position.

In the accompanying drawing, various'embodiments ofthe invention areillustrated by way of example.

In the drawing Figure 1 is a view of one embodiment in the operativeposition, the inoperative position being indicated by broken lines,parts of the ski, as far as they assist in the explanation, being alsoshown;

Figure 2 is a part side view and apart section on line a,b in Figure 1;

Figure 3 is a plan view'of the upper part of the device parts beingbroken away and Figure '4 is a horizontal section on line c-d inFigure 1. v

The ski tip tensioning device according to Figures 1 to 4 comprises twosheet metal clamps l which are adapted to be slipped over the edges ofthe skibehind their tips and intended to hold 5 together the ski withtheir running surfaces adjacent. The section of the clamps is U- hapedand widens towards the top, from which resilient wire arms 2 extend totensioning means 3 for stretching the tips of the-ski. The tensioningmeans is designed as toggle levers. Each wire is bent over at an acuteangle, and held at the bend by being clamped, by means of a flap 4partly stamped out of the middle portion of the clamp I, between suchflap and the remainder of the middle portion. The two free ends of thewires and those of the wire attached to the opposite clamp in the samemanner embrace, in pairs, the

ends of pins 6 provided on the tensioning means and carrying frictionrollers 5. The tensioning means consists of two lever parts 8, 9 of a U-shaped section, which can be moved in the manner of a toggle lever rounda linked bolt '1, each of these parts carrying one of the rollers 5mentioned above. The lever parts having this section enhance therigidity of the structure of the device, and diminish the tendency ofthe tensioning means to bend laterally.

In order to stretch the tips of a pair of ski, the untensioned device isslipped in from above between the tips of the ski (see the broken linein Figure l) and the sheet metal clamps are placed against thetransversal pressure of the resilient wires 2, over the edges of the skion both sides, and in view of the spring tension the ski bear tightlyand evenly against the middle portion of the clamps. Thereupon, thelever parts 8, 9 of the tensioning means are moved, against the lateralpressure of the resilient wires 2, in the direction of the arrow a: intothe tensioned position. In doing this, the flat sides of the ski are 5forced against the flanges of the. sheet metal clamps, and the tipportion of each ski is stretched evenly and by a uniform pressure. Anydisplacement or turning of the ski in the clamps is impossible in Viewof the transversal and lateral 10 pressures. The adjoining rollers 5prevent damage to the running surfaces even in the case of a very strongtensioning pressure. In order to improve the guiding and to increase theclamping pressure on the ski, the clamps i may, within 15 practicablelimits, be made as long as desired.

In order to obtain ,a softer seating for the ski on the flanges of thesheet metal clamps, each flange may be provided with a padding layer ll]at the contacting surfaces (see'Figure 4) 20 In order to obtain a longertensioning path for a single tensioning means, a plurality of joiningpoints for the lever parts may be provided. For example, a number ofholes may be provided in the lever part B for inserting a screw wherede- 25 sired, the two lever parts being interconnecting in an easilydetachable manner by means of this screw and of a winged nut.

The resilient connecting parts provided between the clamps and thetensioning means may also be 3 replaced by other elastic means such as aflexible shaft or the like.

What I claim is:

1. A device for maintaining the bend in the tips of a pair of ski havingtheir running sur- 5 faces adjacent, comprising means for stretchingapart one from another the tips of such ski including comprising twoclamps the cross-section of which is U-shaped and widens from one end ofthe clamp to the other in such a manner that 40 the flanges of theclamps adapted to grasp two adjacent edges of the ski follow the tips ofthe ski along a part of the bent portions thereof.

2. A device for maintaining the bend of the tips of a pair of ski havingtheir running faces 45 adjacent, comprising a pair of rigid clamps ofU-shaped cross-section which widens from one end to the other, each ofsaid clamps being adapted to embrace the edges of said two ski on oneside thereof and to follow the bend of 5 said tips, a resilient memberon each of said clamps and stretching means adapted to act upon saidresilient members in spreading out the tips of the ski.

3. A device for maintaining the bend of the 55 tips of a pair of skihaving their running faces adjacent, comprising a pair of clamps adaptedeach to grasp adjacent edges of the ski, a V- shaped spring member oneach of said clamps extending in the direction of the tips of ski, a pinconnecting said two spring members on the outer ends thereof and saidmembers being adapted to press the clamps towards the edges of the skiwhen mounted thereon.

4. A device for maintaining the bend of the tips of a pair of ski havingtheir running surfaces adjacent, comprising a pair of clamps of U-shapedcross-section, the flanges of each of these clamps being adapted tograsp adjacent edges of said ski and to follow them along a portion oftheir bend, the distance between said flanges of each of the clampsincreasing in the direction toward the tips of the ski, a V-shapedspring-member on each of said clamps having its legs extending in thedirection of the tips of the ski to be stretched, and stretching meansconnecting the outer ends of said legs one with another and adapted topress against the tips of the ski.

5. A device for maintaining the bend of the tips of a pair of ski havingtheir running surfaces adjacent, comprising a pair of clamps of U-shapedcross-section Widening in the direction towards the tips of the ski, theflanges of these clamps being adapted to engage adjacent edges of theski, an eye formed on the middle portion of each of said clamps, aV-shaped spring-member mounted in said eye and having its legs extendingin the direction of the flanges of said clamps, a pin connecting theouter end of each of said legs with the corresponding end of the otherspring-member, a roller loosely mounted on each of these two pins and astretching device connecting said two pins one with another and adaptedto press said rollers towards the tips of the ski.

6. A device for maintaining the bend of the tips of a pair of ski havingtheir running surfaces adjacent, comprising a pair of clamps of U-shaped section the flanges of which are adapted to grasp two adjacentedges of ski and follow the tips of the ski along a portion of theirbend, a padding on the inner side of the flanges of each of saidclamps," a spring member mounted on each of said clamps and connectedwith that on the other memberso as to press the clamp towards the edgesof the ski when applied there-- on, and stretching means connected withsaid spring members in such a manner as to press the tips of the skiaway from each other.

LEO BURCH.

